Citygate GIS

2010 and 2020 TIGER shape files: census blocks and larger 2010 and 2020 Census data

Compactness measures include Schwartzberg, Reock, Convex Hull, X-Symmetry, Length-Width

Support pricing is based on the number of callers, not the number of licensed users.

Azavea, Inc.

2020 Census: total population, population by race/ethnicity at the county, block group, and block level. 2016 and 2020 presidential election data.

Total population by race; Compactness measures include Polsby-Popper; Competitiveness by PVI score; Majority-minority district viewer

Support is free.

MGGG

2020 Census data on 2020 VTDs or block group shape files, Native American Areas. Total population, voting age population, race/ethnicity at the block level. Districtr is open to providing other data upon request (i.e. home ownership/renter, and city council lines). Mapping available at the block level in local modules and block group or precincts in statewide modules. Presidential, senate, and other statewide election results going back to 2012 for some states. Type and year of election varies by state. Some include U.S. House election results.

Compactness scores include cut edges and Polsby-Popper; Total population and VAP by race; Partisan composition and proportionality

Support is free.

ArcBridge Consulting

2010 TIGER shape files: census blocks, block groups, tracts, and precincts 2010 census data. Users can import ACS data and election results.

Total population and VAP by race

Support is included with a license.

Dave's Redistricting, LLC

2020 TIGER shapefiles for census blocks and precincts (VTDs) 2020 Census Total Pop and VAP (w/ demographic breakdown); 2018 ACS Total Pop and CVAP (w/ demographic breakdown. Election data varies by state: Presidential election data (2008-2020). Senator, gubernatorial, and other state-wide election data (2014-2018). Election composites of two or more elections.

Total population, VAP and CVAP by race; Compactness measures include Reock, Polsby-Popper, and how people judge compactness; Fairness/partisan bias (12 measures); Minority representation (opportunity and coalition districts, RPV); Competitiveness; Proportionality; County, district, precinct, and community splitting

Support is free.

Statewide Database

TIGER shape files at Census block group level Census population data available, ACS demographic data will be included in the future NOTE: data layers only available after drawing a COI map

Support is free.

ESRI

2020 TIGER/LINE shapefiles for census blocks, block groups, tracts, VTDs, and counties 2010 and 2020 Census: VAP and racial/ethnic categorizations. Census ACS 2020, ESRI Demographics. For more information about the demographic variables available, see https://doc.arcgis.com/en/redistricting/analyze/understanding-demographic-variables.htm.

Total population and VAP by race; Compactness measures include Polygon Area, Perimeter, Reock, Area/Convex Hull, Grofman, Schwartzberg, Polsby-Popper, Holes; District splits; Plan comparison;

Caliper Corporation

2020 TIGER shape files at the Census block, block group, census tract, county level 2020 census data Can add political data and election results.

Total population by race; Compactness measures include Reock, Schwartzberg (original and alternate), Perimeter, Polsby-Popper, Length-Width, Population Polygon, Area/Convex Hull, Population Circle, Ehrenburg, Cut Edges; Partisan competitiveness; Plan comparison

Support pricing for technical support by email and/or phone is $250/hour.

Caliper Corporation

2020 TIGER shape files at the Census block, block group, census tract, county level 2020 census data Can add political data and election results.

Total population by race; Compactness measures include Reock, Schwartzberg (original and alternate), Perimeter, Polsby-Popper, Length-Width, Population Polygon, Area/Convex Hull, Population Circle, Ehrenburg, Cut Edges; Partisan competitiveness; Plan comparison;

Support pricing for technical support by email and/or phone is $250/hour.

John Holden

QGIS does not come with any pre-loaded data; users must supply their own. Districts can be drawn at any level, including census blocks and precincts.

Depends on imported data

Support is free.

Redistricter, LLC

2022 ACS/Census data 1990/2000/2010/2020 Census population data Thousands of elections with precinct-level data

Total Population and VAP by race

Support is free.

Representable

Census blocks or block groups available - users create COIs based on their own personal experiences and knowledge. NOTE: election results and demographic data layers only available after drawing a COI map

Population data displays while mapping. Other demographic and election data only displayed after COI map is drawn.

Support is free.